Polylock is interlocking helically wound strip. When a bend is applied to the polylock it loosens the lock between the joints which can make the polylock less air tight. This is acceptable in external conditions but should ideally be wrapped with a heat wrap to make sure all of the exhaust gases are kept inside.
eBay
Stainless Steel T304 1.5mm Wall Tube Suitable For Exhaust and Other Tube Repair. High quality stainless steel (T304). Available in various lengths. T304 stainless tube characteristics. Stainless steels are highly resistant to corrosive attack and to oxidation at high temperatures.
eBay
Wall Thickness - +/- 10% Tolerance on cut lengths = +3mm/-Zero. >40mm <50mm +/- 0.20mm.
eBay
These bars can be bent, cut, drilled, and welded. Circular Hollow Section. MS Round Bars. Bright Mild Steel. Sizes available Mild Steel Round Bar. If you are interested in other steel products, we have what you are looking for.
eBay
Stainless steels are highly resistant to corrosive attack and to oxidation at high temperatures. The inherent characteristics of stainless steel permits the design of thin wall piping systems without fear of early failure due to corrosion.
eBay
Our tight rad tube bends are made with automotive repair and modification in mind. UNIVERSAL STAINLESS STEEL EXHAUST MANDREL BEND. Mandrel Bent For Smooth Flow and High Quality Appearance. 35mm - 76mm 1.5mm 1.5D CLR 15, 30, 45, 60, 90, 135 Degrees T304/T409 Stainless Steel.
eBay
T304 Stainless Steel Tubing. High quality stainless steel (T304). Available in various lengths. T304 stainless tube characteristics. Stainless steels are highly resistant to corrosive attack and to oxidation at high temperatures.
eBay
Steel Erw Circular Tube (Various Sizes) 1000mm - 3000mm available. These bars can be bent, cut, drilled, and welded. Circular Hollow Section. MS Round Bars. Bright Mild Steel. Sizes available Mild Steel Round Bar.
eBay